MAX9879(2009) データシートの表示（PDF） - Maxim Integrated
部品番号
コンポーネント説明
メーカー
MAX9879
(Rev.:2009)
(Rev.:2009)
Maxim Integrated
MAX9879 Datasheet PDF : 31 Pages
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Stereo Class D Audio Subsystem
with DirectDrive Headphone Amplifier
Typical Operating Characteristics (continued)
(VDD = VPVDDL = VPVDDR = 3.7V, VCCIO = 1.8V, VGND = VPGNDL = VPGNDR = 0. Single-ended inputs, preamp = 0dB, volume con-
trols = 0dB, BYPASS = 0, SHDN = 1. Speaker loads connected between OUT_+ and OUT_-. Headphone loads connected from HPL
or HPR to GND. RSPK = ∞, RHP = ∞. C1 = C2 = CBIAS = 1µF. TA = +25°C, unless otherwise noted.)
HEADPHONE AMPLIFIERS (Speaker Disabled)
MAX9879 toc21
SDA
2V/div
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (HEADPHONE MODE)
10
VDD = 3.7V
RL = 32Ω
1
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (HEADPHONE NOISE)
10
VDD = 3.7V
RL = 16Ω
1
SCL
2V/div
0.1
OUTPUT POWER = 20mW
OUTPUT POWER = 10mW
0.1
OUT+ -
1V/div
OUT-
0.01
OUTPUT POWER = 45mW
2ms/div
0.001
0.01
0.1
1
10
100
FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (HEADPHONE MODE)
10
VDD = 3.0V
RL = 32Ω
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (HEADPHONE MODE)
10
VDD = 3.0V
RL = 16Ω
1
1
0.1
OUTPUT POWER = 30mW
OUTPUT POWER = 7mW
0.1
0.01
OUTPUT POWER = 40mW
0.001
0.01
0.1
1
10
100
FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (HEADPHONE MODE)
10
VDD = 3.7V
RL = 32Ω
1
0.1
fIN = 1kHz
0.01
OUTPUT POWER = 10mW
0.001
0.01
0.1
1
10
100
FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
10
VDD = 3.7V
RL = 16Ω
1
fIN = 100Hz
0.1
0.01
OUTPUT POWER = 22mW
0.001
0.01
0.1
1
10
100
FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
100
VDD = 3.0V
RL = 32Ω
10
0.1
fIN = 100Hz
0.01
fIN = 100Hz
0.001
0.01
fIN = 6kHz
0.1
1
10
100
FREQUENCY (kHz)
TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (HEADPHONE MODE)
100
VDD = 3.0V
RL = 16Ω
10
fIN = 100Hz
0.1
0.01
fIN = 1kHz
fIN = 6kHz
0.01
fIN = 1kHz
fIN = 6kHz
0.01
fIN = 1kHz
fIN = 6kHz
0.001
0
20
40
60
80 100
OUTPUT POWER (mW)
0.001
0
10 20 30 40 50 60 70
OUTPUT POWER (mW)
0.001
0
10 20 30 40 50 60
OUTPUT POWER (mW)
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